Improvement in cultivators



2 Sheets-Sheetl. J. A. ADAMs.

CULTIVATDR. N0.175,63B. Patented April 4., 1876.

Attorney N-PETERS. PHOTO-LITHOGRAPHER, WASHINGTON, D C.

-2Sheets-Sheet2. J. A. ADAMS.

CULTIVAT'OR. N0.175,636. Patented Apri14, 1876.

Fzya.

N.PE|'ERS, PNOTO-LITHOGRAFNER, WASHINGTON U C UNITED STATES PATENTQFFICE.

JOHN A. ADAMS, OF BATTLE CREEK, MICHIGAN.

IMPROVEMENT IN CUL'l'lVATORS.

Specification forming part of Letters Patent No. 175,636, dated Apr l 4,1876; application filed December 23, 1875.

To all whom it may concern:

Be it known that I, JOHN A. ADAMS, of Battle Creek, in the county ofCalhoun and in the State of Michigan, have invented certain new anduseful Improvements in Cultivators; and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing bad to the accompanying drawings, and to the letters of referencemarked thereon making a part of this specification.

The nature of my invention consists in the construction and arrangementof a cultivator, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappert-ains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a plan view of my cultivator.

I Fig. 2 is a side elevation, and Fig. 3 is a section of the samethrough the line 00 m, Fig. 1. Fig. etis an enlarged perspective view,showing the construction of the cultivator-teeth.

A represents the main frame of my cultivator, provided at each end witha plate or casting, B, extending from the front rear ward for a suitabledistance, and extended upward at its rear end, which extended portion isformed with a curved slot, a.

On each end of the frame at the front of the casting B is pivoted alever, (J, which carries the spindle b, for the wheel E placed thereon.The inner end of this spindle passes through the slot at in the castingB, and has a head or its equivalent on its end on the inner side of saidcasting, to hold the same thereto.

'By means of these side levers G O, the frame A may be regulated atvarying distances from the ground, as required, for making thecultivator-teeth run'deep or shallow,

the levers being held by ordinary ratchet devices.

On the front side of the frame A, near each end, is secured a brace, D,which extends forward and inward, and is arched as shown in Fig. 2. Thefront ends of these braces are fastened to the sides of the tongue G bya single bolt passing through them, so as to pivot the tongue betweenthem.

The tongue Gr extends rearward over the main frame A, and has a frame,H, secured to its under side, to which latter frame the cultivator-teethare attached. The rear portion of the frame H is, by chains 01 01,connected with arms 6 e projecting from a shaft, j, which has itshearings in standards I I on the rear portion of themain frame A. On oneend of the shaft f is a semicircular 1ever, J, for raising and loweringthe frame H, which lever may be operated either from the drivers seat Itor from the rear of the machine, if the driver is Walking behind.

It will thus be seen that the cultivatorframes are attached to thetongue far forward by the single bolt i, on which latter it is free toplay as a pivot or hinge in such a manner that the frames may have freeplay up or down or laterally, oscillating, so to speak, in order toallow the cultivator-teeth to raise over or pass around stones or otherobstructions without unnecessary strain upon the team or the differentparts of the cultivator, thus obviating a very serious cause of breakagethereof. Either end of the plowframe is free to lift up without liftingthe plows on its opposite end out of the ground, and they work or movelaterally when meeting with such obstructions.

K K represent the cultivator-teeth or plows, each of which is fastenedto the lower connected ends of two bars, L and L, forming the plow footor shank.

The upper end of the front bar L is bent forward and fastened to theunder side of one of the cross-bars of the frame H, with the angleagainst thefront side of one of thelongitudinal bars of said frame. Onthis longitudinal bar'is secured a plate or casting, h, the front ofwhich is slotted or grooved to straddle the bar L from behind and holdit firm, free from any lateral or side motion. The upper end of the barL is bent rearward and fastened to the same cross-bar of the frame H.

By these means greater strength and efficiency are secured to the Wholemachine, preventing splitting of the plowframe.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination of the stationary main frameA, braces D D, tongue G,pivot-bolt i, In testimony that I claim the foregoing I and movablecultivator-frame H, 2111 substztnhave hereunto set my hand this 30th dayof tially as and for the purposes herein set forth. November, 1875.

2. The notched guide-plate h attached to the JOHN A. ADAMS. under sideof the frame H, in combination Witnesses: with the bars L and L, as andfor the pur- JOHN MEAGHEM,-

poses herein set forth. WILLIAM A. BRIGGS.

